Tentukan hasil perkalian benruk aljabar berikut ini (5y^2-8y)(5y^2+8y)

(5y² - 8y)(5y² + 8y)
= (5y²)(5y²) + (5y²)(8y) + (5y²)(-8y) + (8y)(-8y)
= 25y⁴ + 40y³ - 40y³ - 64y²
= 25y⁴ - 64y²

Mapel : Matematika
Kelas : VIII SMP
Bab : Bentuk Kuadrat

Rumus :
a² - b² = (a + b)(a - b)

Pembahasan :
(5y² - 8y)(5y² + 8y)
= (5y²)² - (8y)²
= 25y⁴ - 64y²